Medical tube retainer



FIG. 1 is a front view of my new design, the rear view is a mirror image;

FIG. 2 is a right side view of FIG. 1, the left side view is a mirror image;

FIG. 3 is a top plan view of FIG. 1; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a medical tube retainer, as shown and described. 